Direct-evaporation type fresh-air processing system using high-temperature domestic wastewater as cold (heat) source

Abstract

The invention discloses a direct-evaporation type fresh-air processing system using high-temperature domestic wastewater as a cold (heat) source, wherein a water suction pipe of a first-level water pump is provided with a filter, and a water sucking mouth of the first-level water pump is arranged at the bottom of a heat preservation header tank; a drain pipe of the first-level water pump passes through a heat exchanger and then is connected into the heat preservation header tank; the mouth of a water suction pipe of a second-level water pump is arranged at the bottom of the heat preservation header tank, and a drain pipe of the second-level water pump passes through an outdoor heat exchanger of a direct-evaporation type fresh-air processing machine set in a heat exchange mode; and anotherpipeline of the heat exchanger is connected with a domestic water pipeline. The fresh-air processing machine set uses the high-temperature domestic wastewater as the cold (heat) source to replace theprior air source so that the working condition of the machine set is greatly improved and the efficiency is improved. By using the heat energy of the high-temperature domestic wastewater to preheat the domestic water supply, the heating energy consumption of water supply can be reduced. The system has the advantages of simple and practical structure and obvious energy saving effect.

Description

technical field [0001] The invention relates to a direct evaporative fresh air treatment system, in particular to a direct evaporative fresh air treatment system using high-temperature domestic waste water as a cold (heat) source. Background technique [0002] At present, direct evaporative fresh air air handling units mostly use air as the cold (heat) source. The main disadvantages are that the unit’s refrigeration energy efficiency ratio is low (EER (heating performance coefficient COP), the ability to use low-level heat sources is poor, and the energy utilization rate is low. Higher operating costs. In particular, the unit still has the problem of defrosting under heating conditions. All of these limit the promotion and application of direct evaporative fresh air air handling units in civil and similar buildings to a certain extent. [0003] In family life, high-temperature domestic wastewater, such as shower wastewater, is discharged directly at a higher temperature, w...

AI Technical Summary

Problems solved by technology

These all limit the promotion and application of direct evaporative fresh air air handling units in civil and similar buildings to a certain extent.

[0003] In family life, high-temperature domestic wastewater, such as shower wastewater, is discharged directly at a higher temperature, which causes energy waste on the one hand and thermal pollution on the environment on the other

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